1、Unit 2 CloningSection Grammar同位语及同位语从句语 境 自 主 领 悟 先观察原句Altogether Dolly lived six and a half years，half the length of the life of the original sheep.The fact that she seemed to develop normally was very encouraging.Then came the disturbing news that Dolly had become seriously ill.语 境 自 主 领 悟 后自主感悟 左
2、边句子中加黑部分是同位语。同位语可以由名词、代词、数词、形容词或来充当。句是由作同位语；句和句是由引导的从句。从句名词短语that同位语语 法 精 要 点 拨 考点一 同位语 一个名词或代词后面有时可以跟一个名词(或起类似作用的其他形式)，对前者进一步说明，这一部分就叫作同位语。可充当同位语的有名词(词组)、代词、数词、形容词(短语)、动名词(短语)、不定式(短语)及从句等。We students all respect him Mr Johnson，our English teacher.我们学生都尊重他，我们的英语老师约翰逊先生。名词(词组)作同位语 They each put forwa
3、rd a proposal.他们每个人都提出了一个建议。(代词作同位语)You may leave it to us two.你可以把这事留给我们俩。(数词作同位语)Is this your purpose，to avoid being punished？逃避惩罚，这就是你的目的？(不定式短语作同位语)The current fair，the biggest in its history，is being held in a big city.目前的交易会，是有史以来规模最大的，正在一座大城市举行。(形容词短语作同位语)The first plan，attacking at night，was
4、 turned down.第一个计划是夜袭，被拒绝了。(动名词短语作同位语)即时演练 1 写出下列句中充当同位语的词(组)的词性 We both have a chance to take part in this activity._ Please bring these books to them three._ Wang Bing，our monitor，will help us to turn in our papers._ 代词数词名词词组Is this what you have done，leaving all these things in a mess？_ People，ol
5、d and young，went to the street to watch the parade._ 动名词短语形容词短语考点二 同位语从句 在复合句中用作同位语的从句叫同位语从句。它一般跟在某个名词后面，用来说明前面名词的具体内容。常见的这类名词有：fact，news，hope，truth，idea，suggestion，thought，question，promise，order，problem，belief，word，message，information，proof，announcement，desire，doubt，proposal，advice，possibility 等。Th
6、e news that the team won the game is exciting.球队赢得了这场比赛的消息真是令人激动。The question who should do the work requires consideration.谁应当做这份工作，这个问题需要考虑。I have no idea that you have applied for the post.我不知道你已经申请了这个职位。即时演练 2 将下列句子合并为同位语从句 Will the sports meeting be held on time？The question will be discussed t
7、omorrow.The headmaster will join us in hiking this Sunday.We are glad at the news.The question whether the sports meeting will be held on time will bediscussed tomorrow.We are glad at the news that the headmaster will join us in hikingthis Sunday.A new teacher will teach us English next term.The mes
8、sage reached me yesterday.The message that a new teacher will teach us English next termreached me yesterday.考点三 同位语从句的连接词 1连接词 that 和 whether。(1)that 在同位语从句中仅仅起连接作用，不充当句子成分，但是不能省略。I have read the notice that our school radio station needs two English announcers.我已经读了这个通知，学校广播站需要两名英语播音员。Word came th
9、at they made a great breakthrough in their field.他们在他们的领域取得很大突破的消息传来了。(that 引导同位语从句，说明 word 的具体内容)(2)whether 在同位语从句中译为“是否”，仅仅起连接作用，不充当任何句子成分。There is some doubt whether John will come on time.有人怀疑约翰是否会准时到来。The question whether it is worth doing will be discussed at the meeting.这件事情是否值得做(这个问题)将要在会议上被
10、讨论。2连接代词 who，what，which，whom，whose 引导同位语从句时，在从句中作主语、宾语或表语等；其意义分别为：谁；什么；哪一个；谁；谁的。The problem what we should do next is being discussed at the meeting now.我们下一步该做什么的问题正在会上被讨论着。With time going on，the doubt which team would win disappeared.随着时间的推进，哪支队伍会赢得这场比赛的疑问消失了。The problem whom he would take the pla
11、ce of was discussed at the meeting over and over again.他将代替谁这个问题在会议上被反复讨论。3连接副词 when，where，why 和 how。连接副词 when，where，why，how 引导同位语从句时则在句中作时间、地点、原因和方式状语；其意义分别为：什么时间；哪里；为什么；怎么样。The question when and where we should spend our holiday has not been decided.我们要什么时候到哪里去度假的问题还没有决定。We havent yet settled the
12、question where we are going to spend our summer vacation.我们还没决定到什么地方去度暑假。即时演练 3 单句语法填空 The young man must answer the question he agrees to it or not.He is going to America，but I have no idea he will leave.The manager put forward a suggestion we should have an assistant.There is too much work to do.w
13、hetherwhenthat考点四 同位语从句的注意事项 1同位语从句中的虚拟语气 名词 suggestion，order，demand，command，request 等后的同位语从句要用虚拟语气，即从句谓语用“(shoulddo)”的形式。The suggestion that everyone(should)make efforts to make our country stronger is necessary.每个人都应努力来使我们的国家变得更强的建议是有必要的。2doubt 后的同位语从句 名词 doubt(怀疑)后的同位语从句用 whether 引导；no doubt(毫无疑问
14、)后的同位语从句用 that 引导。There is no doubt that he will come to help me whenever I am in trouble.每当我有困难时他会来帮我，这是毫无疑问的。(no doubt 表示肯定概念)We have some doubt whether they can complete the task on time.我们怀疑他们能否按时完成任务。3同位语从句和定语从句的区别 同位语从句定语从句 功能不同对名词加以补充说明与先行词是修饰与被修饰的关系，起连接作用 that不作成分，只起连接作用，不可省略作主语或宾语，起连接作用；并且作
15、从句的宾语时可省略 whether/how/what起连接作用，其中whether 不作成分，而how 和 what 作成分不引导定语从句 其他 wh类词作成分；起连接作用；有自己的含义作成分；起连接作用；没有自己的含义，但是代替先行词在从句中作成分 Jim got to know the news that the whole village was in great danger.吉姆得知整个村子都处在极度危险中的消息。(that 引导同位语从句，解释说明 the news 的内容)Do you know the news(that/which)Jim told me?你知道吉姆告诉我的那
16、个消息吗？(that/which 引导定语从句，且在从句中作宾语)4分隔式同位语从句 有时同位语从句与其所解释说明的名词会被其他成分隔开，从而形成分隔式同位语从句，这样做主要是为了保持句子结构平衡，避免头重脚轻。A saying goes that a constant guest is never welcome.谚语说：常客令人厌。(that 引导同位语从句，说明 saying 的内容)即时演练 4 单句语法填空 The general gave the order that the soldiers(cross)the river at once.There is no doubt I
17、will achieve great progress in English learning with your assistance.We all have those unforgettable days we together had a meaningful time.(should)crossthatwhen语 法 应 用 落 实 单句语法填空 1There is no doubt he will succeed in time.2We cant solve the problem we can travel faster than light.3The question we n
18、eed more time to do the work has not been discussed.4The message responsibility it was is known to all.5He holds the belief he will pay off if he works hard.thathowwhether/whywhosethat6The order all the soldiers should set off at once is given by the general.7Her mother was worried about the possibility her daughter disliked going to school.8I have a feeling our team is going to win.9Despite the fact he was not an expert in painting，he achieved a lot because of hard work.10Word came the famous football star would come to visit our city.thatthatthatthatthatThank you for watching!